How to Choose a Plumber — UK Trust and Vetting Guide
Choosing the wrong plumber costs the average UK homeowner £2,400 in remedial work. Here is the trust-verification checklist Which? and CIPHE recommend.
Step-by-step method
1. Verify Gas Safe registration (for gas work)
gassaferegister.co.uk — search by name or licence number. Ask to see the card in person; check photo + expiry.
2. Check professional bodies
CIPHE (Chartered Institute of Plumbing & Heating Engineering) or APHC (Association of Plumbing & Heating Contractors) membership is a strong quality signal.
3. Get 3 written itemised quotes
Parts + labour separated. Callout fee. Warranty period. Payment terms — never pay 100% upfront.
4. Read verified reviews
Checkatrade, TrustATrader, Which? Trusted Trader. Ignore Google reviews if under 20 total — too easy to fake.
5. Insurance and guarantee
Ask for public liability insurance certificate (£1m minimum). Ask about workmanship guarantee (2 years standard).
Frequently asked questions
Should I use a national brand or local plumber?+
Local independents usually cheaper and more responsive. Nationals (Homeserve, British Gas) offer nationwide guarantee but charge 30–50% more.
How much should a plumber charge per hour UK 2026?+
£45–£70/hour outside London. £70–£110/hour in London. Emergency callouts £120–£220.